| FRFlorida Rock Edgewood Ready Mix Plant | Jacksonville | FL | — | ◇ UNVERIFIED |
| FCFlynn CO | Iowa | IA | — | ◇ UNVERIFIED |
| FCFlynn CO INC - Dubuque | Dubuque | IA | — | ◇ UNVERIFIED |
| FLForcum Lannom Materials | Dyersburg | TN | — | ◇ UNVERIFIED |
| FRFords Redi Mix Charleston | Charleston | SC | — | ◇ UNVERIFIED |
| FRFords Redi Mix Concrete | Ladson | SC | — | ◇ UNVERIFIED |
| FVForest View Landfill | Kansas City | KS | — | ◇ UNVERIFIED |
| FCFormer Cemex Concrete Plant/ Demolitian | Kissimmee | FL | — | ◇ UNVERIFIED |
| FGFormer Gordon Oil Refinery | Greybull | WY | — | ◇ UNVERIFIED |
| FSFormer Sohio Refinery | Fort Wright | KY | — | ◇ UNVERIFIED |
| FSFormer St Marks Refinery | Crawfordville | FL | — | ◇ UNVERIFIED |
| FPForney Plant | Forney | TX | — | ◇ UNVERIFIED |
| FRForrest Redi-mix Inc/gilman | Gilman | IL | — | ◇ UNVERIFIED |
| FRForsyth Redi-mix | Rural Hall | NC | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Cedar Rapids | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| FPForterra Pipe and Precast Llc, Prentiss Plant | Prentiss | MS | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - El Mirage | El Mirage | AZ | — | ◇ UNVERIFIED |
| FPForterra Precast Concepts, INC | Grand Junction | CO | — | ◇ UNVERIFIED |
| FSForterra Structural Specialty Products - West Valley | West Valley City | UT | — | ◇ UNVERIFIED |
| FPFort Payne Plant | Fort Payne | AL | — | ◇ UNVERIFIED |
| FPFort Pearce Facility | Saint George | UT | — | ◇ UNVERIFIED |
| FWFort Walton Concrete - Defuniak Plant | Defuniak Springs | FL | — | ◇ UNVERIFIED |
| FWFort Walton Concrete - Freeport | Freeport | FL | — | ◇ UNVERIFIED |
| FWFort Walton Concrete INC | Fort Walton Beach | FL | — | ◇ UNVERIFIED |
| FWFort Walton Concrete - Valparaiso Plant | Valparaiso | FL | — | ◇ UNVERIFIED |
| FHFountain Hills | Fort Mcdowell | AZ | — | ◇ UNVERIFIED |
| FCFowler-flemister Concrete CO INC | Milledgeville | GA | — | ◇ UNVERIFIED |
| FFFowler Flemister Concrete, INC. - Madison | Madison | GA | — | ◇ UNVERIFIED |
| FCFrank Casilio & Sons, INC | Allentown | PA | — | ◇ UNVERIFIED |
| FCFrank Casilio & Sons, INC | Bethlehem | PA | — | ◇ UNVERIFIED |
| FCFranklin County Concrete | Washington | MO | — | ◇ UNVERIFIED |
| FCFranklin County Concrete - Washington Pl | Washington | MO | — | ◇ UNVERIFIED |
| FVFranks Vacuum Truck Service INC | Niagara Falls | NY | — | ◇ UNVERIFIED |
| FWFred Weber - Concrete Plant 4 | Maryland Heights | MO | — | ◇ UNVERIFIED |
| FWFred Weber Inc-highway 21 Project | Hillsboro | MO | — | ◇ UNVERIFIED |
| FWFred Weber Portable Plant #1 | Webster Groves | MO | — | ◇ UNVERIFIED |
| FRFreedom Ready Mix INC | Waynesville | MO | — | ◇ UNVERIFIED |
 Freeman Rock INC. | Crescent City | CA | — | ◇ UNVERIFIED |
| FRFrontier Ready Mix | Mead, 0.2 Mi Ne of | CO | — | ◇ UNVERIFIED |
| FRFrontier Ready-mix - Johnstown | Johnstown | CO | — | ◇ UNVERIFIED |
| FRFrontier Refining INC | Cheyenne | WY | — | ◇ UNVERIFIED |
| FWFt Worth Plant | Fort Worth | TX | — | ◇ UNVERIFIED |
| FFuquay | Fuquay Varina | NC | — | ◇ UNVERIFIED |
| FAFuquay Academy | Fuquay Varina | NC | — | ◇ UNVERIFIED |
| FFusionsite | Memphis | TN | — | ◇ UNVERIFIED |
| GCG2 Const. Services (portable) | Portable | KS | — | ◇ UNVERIFIED |
| GEG3 Enterprises INC | Thedford | NE | — | ◇ UNVERIFIED |
| GMGalamba Metal Groups | Holts Summit | MO | — | ◇ UNVERIFIED |
| GRGalt Rock and Asphalt Products | Galt | CA | — | ◇ UNVERIFIED |
| GCGalva Concrete | Galva | IL | — | ◇ UNVERIFIED |
